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高分子学报 1993
GROUP TRANSFER BLOCK COPOLYMERIZATION BY BIFUNCTIONAL INITIATORS
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Abstract:
It was reported the group transfer block copolymerization of methacrylates and arylates with bifunctional initiators and bibenzoate catalyst. ABA-triblock copolymers of MMA and BA, MMA and BMA, MMA and EMA with predetermined molecular weight and low poly-dispersity were obtained. The copolymers were characterized by 1H-NMR, GPC and DSC. The effects of the block sequence, catalyst concentration, solvent polarity on block copolymerization were studied.